MAX1799AEUP

Overview

The MAX1799AEUP is a specialized power management integrated circuit designed for CDMA cellular and PCS system applications. It integrates five low-noise linear regulators, including one 300mA output and four 150mA outputs, alongside an I2C-compatible interface for configuration. The device operates from a single supply voltage and is housed in a 20-pin TSSOP package with an exposed pad for thermal dissipation. This component serves as a comprehensive power solution for mobile handset systems requiring multiple regulated voltages.

Feature Summary

• Integrates five low-noise LDO regulators to provide multiple stable voltage rails
• Includes an I2C-compatible serial interface for digital control and monitoring
• Designed specifically for the power requirements of CDMA cellular handsets

Applications

• CDMA cellular handset power supplies
• PCS system power management
• Mobile communication device voltage regulation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm package integrity and pin alignment upon receipt. Ensure storage conditions comply with moisture sensitivity levels specified in the datasheet. Check for obsolescence status as this part may be discontinued or subject to limited production runs.

Selection Notes

Select this component when designing CDMA or PCS mobile devices requiring a compact, multi-rail power solution. Evaluate thermal performance given the TSSOP exposed pad package. Ensure system voltage requirements align with the integrated regulator outputs. Consider the I2C interface compatibility with the host microcontroller for dynamic power management features.

Part Context

The MAX1799 series belongs to Maxim Integrated's portfolio of specialized PMICs for wireless communications. It addresses the need for high integration in mobile handsets by combining multiple analog functions into a single small-footprint package. This reduces board space and simplifies power distribution networks compared to discrete solutions.

Replacement Considerations

Check for updated versions within the MAX1799 family or cross-reference with other Maxim CDMA PMICs. Verify pinout compatibility and electrical specifications before substituting. Consult official documentation for any recommended upgrades or end-of-life alternatives.